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An electron is projected with uniform ve...

An electron is projected with uniform velocity along the axis of a current carrying long solenoid . Which of the following is true ?

A

the electron will be accelerated along the axis

B

the electron path will be circular about the axis

C

the electron will experience a force at `45^@` to the axis and hence execute a helical path

D

the electron will continue to move with uniform velocity along the axis of the solenoid

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